Overview
Specifications and operating parameters for pumps appear here for reference.
Features and options
Model Series 90 Pumps
Mount SAE B, SAE C and E (SAE J 744)
Pump type Axial piston type
Rotation Bidirectional
Installation position Discretionary: Housing must always be filled with hydraulic fluid. Do not install with control on bottom.
Input shafts Splined
Control options MDC (with options), EDC, HDC, FNR
Operating parameters
Parameter Unit Pressure
System pressure Rated bar
[psi]
420 [6000]
Maximum 480 [7000]
Minimum low loop 10 [150]
Charge pressure Minimum bar
[psi]
10 [150]
Maximum 35 [508]
Charge inlet pressure Rated bar (absolute)
[in Hg vacuum]
0.7 [9]
Minimum (cold start) 0.2 [24]
Case pressure Rated bar
[psi]
3.0 [40]
Maximum 5.0 [75]
Parameter Unit Frame size
042 055 075 100 130 180 250
Displacement
(maximum)
cm³
[in³]
42
[2.56]
55
[3.35]
75
[4.57]
100
[6.10]
130
[7.93]
180
[10.98]
250
[15.25]
Minimum speed min-1 (rpm) 500 500 500 500 500 500 500
Rated speed min-1 (rpm) 4200 3900 3600 3300 3100 2600 2300
Maximum speed min-1 (rpm) 4600 4250 3950 3650 3400 2850 2500
Maximum attainable speed at
maximum displacement
min-1 (rpm) 5000 4700 4300 4000 3700 3150 3750
Theoretical torque at maximum
displacement
N•m/bar
[lbf•in/1000
psi]
0.67
[380]
0.88
[530]
1.19
[730]
1.59
[870]
2.07
[1260]
2.87
[1750]
3.97
[2433]
Weight (base unit only) kg
[lb]
34
[75]
40
[88]
49
[108]
68
[150]
88
[195]
136
[300]
154
[340]
Fluid specifications
Ratings and data are based on operation with premium petroleum-based hydraulic fluids containing
oxidation and foam inhibitors.
Service Manual
Series 90 Pumps
Technical specifications
520L0818 • Rev 0101 • August 2015 19
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